UFM Series 6
Q.Sonic-plus
Operation and Maintenance
Exchanging a transducer can take place when the line with the
Ultrasonic Flow Meter Series 6 is depressurized:
− Refer to specific installation instructions delivered with
the transducers: Transducer Exchange at Atmospheric
Conditions ( listed in Appendix I – References)
Optionally, exchanging a transducer can be done when the
Ultrasonic Flow Meter Series 6 is pressurized:
− A special tool is required for this: the ‘Retraction tool NG
Transducers’. Please familiarise yourself with the
documentation regarding this special tool: Retraction tool
NG transducers ( listed in Appendix I – References).
− Before beginning this procedure please verify if this is
allowed by the safety standards set by your company
and local safety regulations. If in doubt, DO NOT remove
the transducers under pressure.
8.3.4 SPU Exchange
Some parts of the SPU can be exchanged without issue, provided that the
appropriate hardware and software versions are used. The product numbers
can be found on the PCB and have the following structure xxx-xxx-xxx-xxx.
The software version and its checksums can be checked through the front
panel. For more information see Chapter 7.1 LED at Display (p.33).
An SPU exchange will not affect the measuring characteristics and accuracy
(and as a consequence the calibration) of the UFM. However if the board is
sealed after calibration, please contact Elster or your local representative
before proceeding with the exchange.
When exchanging the SPU (or parts of the SPU), refer to the specific manual
delivered with the component. Depending on the board, it could be one of
the following documents:
Ultrasonic Flow Meter Series 6 Exchanging PCB boards in TIP
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